1 files changed, 0 insertions, 129 deletions
diff --git a/kamon-core/src/main/scala/kamon/metrics/Subscriptions.scala b/kamon-core/src/main/scala/kamon/metrics/Subscriptions.scala
deleted file mode 100644
index e398ebe0..00000000
--- a/kamon-core/src/main/scala/kamon/metrics/Subscriptions.scala
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * =========================================================================================
- * Copyright © 2013 the kamon project <http://kamon.io/>
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under the
- * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
- * either express or implied. See the License for the specific language governing permissions
- * and limitations under the License.
- * =========================================================================================
- */
-
-package kamon.metrics
-
-import akka.actor.{ Props, ActorRef, Actor }
-import kamon.metrics.Subscriptions.{ MetricGroupFilter, FlushMetrics, TickMetricSnapshot, Subscribe }
-import kamon.util.GlobPathFilter
-import scala.concurrent.duration.{ FiniteDuration, Duration }
-import java.util.concurrent.TimeUnit
-import kamon.Kamon
-import kamon.metrics.TickMetricSnapshotBuffer.{ Combined, FlushBuffer }
-
-class Subscriptions extends Actor {
-  import context.system
-
-  val config = context.system.settings.config
-  val tickInterval = Duration(config.getNanoseconds("kamon.metrics.tick-interval"), TimeUnit.NANOSECONDS)
-  val flushMetricsSchedule = context.system.scheduler.schedule(tickInterval, tickInterval, self, FlushMetrics)(context.dispatcher)
-
-  var lastTick: Long = System.currentTimeMillis()
-  var subscribedPermanently: Map[MetricGroupFilter, List[ActorRef]] = Map.empty
-  var subscribedForOneShot: Map[MetricGroupFilter, List[ActorRef]] = Map.empty
-
-  def receive = {
-    case Subscribe(category, selection, permanent) ⇒ subscribe(category, selection, permanent)
-    case FlushMetrics                              ⇒ flush()
-  }
-
-  def subscribe(category: MetricGroupCategory, selection: String, permanent: Boolean): Unit = {
-    val filter = MetricGroupFilter(category, new GlobPathFilter(selection))
-    if (permanent) {
-      val receivers = subscribedPermanently.get(filter).getOrElse(Nil)
-      subscribedPermanently = subscribedPermanently.updated(filter, sender :: receivers)
-
-    } else {
-      val receivers = subscribedForOneShot.get(filter).getOrElse(Nil)
-      subscribedForOneShot = subscribedForOneShot.updated(filter, sender :: receivers)
-    }
-
-  }
-
-  def flush(): Unit = {
-    val currentTick = System.currentTimeMillis()
-    val snapshots = Kamon(Metrics).collect
-
-    dispatchSelectedMetrics(lastTick, currentTick, subscribedPermanently, snapshots)
-    dispatchSelectedMetrics(lastTick, currentTick, subscribedForOneShot, snapshots)
-
-    lastTick = currentTick
-    subscribedForOneShot = Map.empty
-  }
-
-  def dispatchSelectedMetrics(lastTick: Long, currentTick: Long, subscriptions: Map[MetricGroupFilter, List[ActorRef]],
-                              snapshots: Map[MetricGroupIdentity, MetricGroupSnapshot]): Unit = {
-
-    for ((filter, receivers) ← subscriptions) yield {
-      val selection = snapshots.filter(group ⇒ filter.accept(group._1))
-      val tickMetrics = TickMetricSnapshot(lastTick, currentTick, selection)
-
-      receivers.foreach(_ ! tickMetrics)
-    }
-  }
-}
-
-object Subscriptions {
-  case object FlushMetrics
-  case class Subscribe(category: MetricGroupCategory, selection: String, permanently: Boolean = false)
-  case class TickMetricSnapshot(from: Long, to: Long, metrics: Map[MetricGroupIdentity, MetricGroupSnapshot])
-
-  case class MetricGroupFilter(category: MetricGroupCategory, globFilter: GlobPathFilter) {
-    def accept(identity: MetricGroupIdentity): Boolean = {
-      category.equals(identity.category) && globFilter.accept(identity.name)
-    }
-  }
-}
-
-class TickMetricSnapshotBuffer(flushInterval: FiniteDuration, receiver: ActorRef) extends Actor {
-  val flushSchedule = context.system.scheduler.schedule(flushInterval, flushInterval, self, FlushBuffer)(context.dispatcher)
-
-  def receive = empty
-
-  def empty: Actor.Receive = {
-    case tick: TickMetricSnapshot ⇒ context become (buffering(tick))
-    case FlushBuffer              ⇒ // Nothing to flush.
-  }
-
-  def buffering(buffered: TickMetricSnapshot): Actor.Receive = {
-    case TickMetricSnapshot(_, to, tickMetrics) ⇒
-      val combinedMetrics = combineMaps(buffered.metrics, tickMetrics)(mergeMetricGroup)
-      val combinedSnapshot = TickMetricSnapshot(buffered.from, to, combinedMetrics)
-
-      context become (buffering(combinedSnapshot))
-
-    case FlushBuffer ⇒
-      receiver ! buffered
-      context become (empty)
-
-  }
-
-  override def postStop(): Unit = {
-    flushSchedule.cancel()
-    super.postStop()
-  }
-
-  def mergeMetricGroup(left: MetricGroupSnapshot, right: MetricGroupSnapshot) = Combined(combineMaps(left.metrics, right.metrics)((l, r) ⇒ l.merge(r)))
-}
-
-object TickMetricSnapshotBuffer {
-  case object FlushBuffer
-
-  case class Combined(metrics: Map[MetricIdentity, MetricSnapshotLike]) extends MetricGroupSnapshot
-
-  def props(flushInterval: FiniteDuration, receiver: ActorRef): Props =
-    Props[TickMetricSnapshotBuffer](new TickMetricSnapshotBuffer(flushInterval, receiver))
-}